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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
NATIONAL UNIVERSITY CORPORATION NARA INSTITUTE OF SCIENCE AND TECHNOLOGY	8916-5 TAKAYAMA-CHO IKOMA-SHI NARA 630-0192

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kobuke, Yoshiaki	Ikoma, JP	11	84
Ogawa, Kazuya	Ikoma, JP	72	931

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 19, 2011	US,7928222,B2   US7928222B2	GRANTED PATENT AS SECOND PUBLICATION
September 27, 2007	US,20070224529,A1   US20070224529A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7928222

Porphyrin compound, process for producing porphyrin compound, three-dimensional optical recording material, and three-dimensional optical recording medium

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